Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    23/08/2026, 09:17

General

  • Target
    aab7dfe9da7fe276f551209acae20df4878f4eb9b45534d34aad611da8f047c8.exe
  • Size 99KB
  • Sample260823-k84xnavfkf
  • SHA256 aab7dfe9da7fe276f551209acae20df4878f4eb9b45534d34aad611da8f047c8
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

C2
  • 00h19.com:8080

  • www.00h19.com:8080

  • malware.00h19.com:8080

  • webmail.00h19.com:8080

  • ww12.00h19.com:8080

  • hostmaster.00h19.com:8080

  • www1.00h19.com:8080

  • ww7.00h19.com:8080

Mutex
  • 7crtUwBga9OF

Attributes
  • delay

    3

  • install

    true

  • install_file

    backdoor.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • Family: AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Async RAT payload 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Executes a command shell one-liner 1 TTPs 2 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Delays execution with timeout.exe 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 31 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\aab7dfe9da7fe276f551209acae20df4878f4eb9b45534d34aad611da8f047c8.exe
    "C:\Users\Admin\AppData\Local\Temp\aab7dfe9da7fe276f551209acae20df4878f4eb9b45534d34aad611da8f047c8.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5780
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "backdoor" /tr '"C:\Users\Admin\AppData\Roaming\backdoor.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5576
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "backdoor" /tr '"C:\Users\Admin\AppData\Roaming\backdoor.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:5040
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp4973.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5004
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:4156
      • C:\Users\Admin\AppData\Roaming\backdoor.exe
        "C:\Users\Admin\AppData\Roaming\backdoor.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:5768
  • C:\Users\Admin\AppData\Roaming\backdoor.exe
    "C:\Users\Admin\AppData\Roaming\backdoor.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:2460

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        tmp4973.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmp4973.tmp.bat
        • Size 152B
        • SHA256 c0765209f6438c1e6762950cbabdbe2cf0dc3aa2811552f206ac2ea57791e7e4
        • MD5 SHA1 SHA512 TLSH

        backdoor.exe

        • Path C:\Users\Admin\AppData\Roaming\backdoor.exe
        • Size 99KB
        • SHA256 aab7dfe9da7fe276f551209acae20df4878f4eb9b45534d34aad611da8f047c8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2460-12-0x0000000074C50000-0x000000007540C000-memory.dmp

        memory/2460-14-0x0000000074C50000-0x000000007540C000-memory.dmp

        memory/5780-0-0x0000000074C62000-0x0000000074C63000-memory.dmp

        memory/5780-1-0x0000000000B10000-0x0000000000B2E000-memory.dmp

        memory/5780-2-0x0000000074C50000-0x000000007540C000-memory.dmp

        memory/5780-3-0x0000000005600000-0x000000000569C000-memory.dmp

        memory/5780-9-0x0000000074C50000-0x000000007540C000-memory.dmp